Hi everyone,
I am master student of Earthquake Engineering and I try to code open source structural analysis program. Actually we wrote our program's calculation algoritms in Python 3 but here is the thing we are using our algoritm text based input and output. So I want to add drawing capability to our code and draw some 3d lines (coloum and beam) and I want to read some data from my drawing area about these lines such as;

And after my calculation I want to plot my values on the same drawing screen.

I know FreeCAD can do these stuff but I have to finish my project before April and I don't have much time to learning " What modules I should use or which way is more efficient " so if you help me I will be very happy.

Eventually for you it is much simpler since you do not seam to have a mesh. In this case it might be simpler to directly write an own module which extracts the data from FEM constraints and Part or Draft geometry and writes the input file for your analysis software.

If you have any specific question do not hesitate to ask. It is quite a short time line ... good luck